This 30mL (1oz) translucent amber high-density polyethylene (HDPE) narrow-mouth packaging bottle comes with an opaque amber polypropylene closure. The Boston round bottle has robust construction for packaging use, and is designed for storage, shipping, and packaging of light sensitive liquids. The leakproof bottle has excellent impact and chemical resistance. Meets USP requirements for light-resistant containers. Bulk Packed. Leakproof. Bottle Material: High-Density Polyethylene (HDPE). Bottle Color: Translucent Amber. Bottle Style: Boston Round. Neck Type: Narrow Mouth. Closure Material: Polypropylene. Closure Color: Opaque Amber. Height With Closure: 61mm. Outer Diameter: 34mm. Neck Inner Diameter: 14mm. Closure Size: 20mm. Neck Finish: 20-415. Capacity: 30mL (1oz). Nalgene®#: 312084-0001.